LTV Electrosystems, Inc., urges that its "leadmen" were supervisors, and that the National Labor Relations Board erroneously did not afford the company a hearing on alleged election irregularities and in the unfair labor practice proceeding that resulted in an order to bargain.1 For these reasons it challenges the Board's finding that it violated §§ 8(a) (5) and (1) of the act2 by its refusal to bargain.

2

After extensive evidentiary hearings, the Board determined that the "leadmen" were not supervisors. We conclude that substantial evidence supports the Board's finding that these employees were properly included in the bargaining unit.